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Thermal Loads inside Open Studio and Energy Plus Results

asked 2022-04-17 04:16:05 -0600

enriquesissa's avatar

updated 2022-04-17 08:05:11 -0600

Hi Everyone,

In the Open Studio result *.HTML, I get a big difference between the load calculations and the system size. Almost double. I need to clarify that the model doesn’t have any ventilation/economizer or infiltration rates ( For testing proposes). Using SZ Heatpump my open studio output defines some Minimum and maximum Outdoor air. Why there is a Maximum if everything is set to zero. This is possible to view "Controller:OutdoorAir" (

Also, the load is specified as hardcoded. I would like to understand better the source of this number and how it gets calculated.


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answered 2022-04-18 10:55:13 -0600

The sensible table only shows sensible loads associated with the space. The HVAC system sizing can include outside air loads, fan heat loads, efficiency penalties, latent heat loads, standby losses, and parasitic loads.

Also see this thread:

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But double the sensible? I defined zero infiltration or Outdoor air. Also Is there any way to see the breakdown?

enriquesissa's avatar enriquesissa  ( 2022-04-19 01:06:12 -0600 )edit

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Asked: 2022-04-17 04:16:05 -0600

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Last updated: Apr 18 '22